package com.example.demo.old;

/**
 * @Author: wenjingyuan
 * @Date: 2023/07/15/23:56
 * @Description:
 */
public class Bottom {
    private Tire tire;
    public  Bottom(){
        this.tire=new Tire();
    }
    public void init(){
        System.out.println("Bottom init");
        tire.init();
    }
}
